Top Definition
This law states that no subject or topic is considered taboo during lunch or food-consuming intervals.
*During lunch*

Mark: Was playing with my foreskin lint last night, then fapped to some loli. My keyboard is encrusted with ginger pubes and dick cheese.

John: Jesus fuck, always when we sit down. I call this Nisbet's law.
by IP3Cali April 29, 2010

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